Table II
Time lapse between last contact
| 1974-90: Number (%) | 1991-99: Number (%) | |
| Day of death | 48 (11) | 23 (7) |
| One day to one month | 109 (25) | 66 (21) |
| One month to six months | 92 (21) | 65 (21) |
| Six months to one year | 55 (12) | 29 (9) |
| One year to two years | 32 (7) | 34 (11) |
| Greater than two years | 106 (24) | 93 (30) |
| Total | 442 | 310 |